Economizer And Two-Position Hood; Step 9 - Units With Hinged Panels Only; Step 10 - Install Flue Hood - Carrier WeatherMaster 48HC Series Installation Instructions Manual

ECONOMIZER AND TWO-POSITION HOOD

NOTE: If the power exhaust accessory is to be installed on the
unit, the hood shipped with the unit will not be used and must be
discarded. Save the aluminum filter for use in the power exhaust
hood assembly.
1. The indoor coil access panel will be used as the top of the
hood. Remove the screws along the sides and bottom of the
indoor coil access panel. See Fig. 15.
2. Swing out indoor coil access panel and insert the hood sides
under the panel (hood top). Use the screws provided to attach
the hood sides to the hood top. Use screws provided to attach
the hood sides to the unit. See Fig. 16.
3. Remove the shipping tape holding the economizer barometric
relief damper in place (economizer only).
4. Insert the hood divider between the hood sides. See Fig. 16
and 17. Secure hood divider with 2 screws on each hood side.
The hood divider is also used as the bottom filter rack for the
aluminum filter.
5. Open the filter clips which are located underneath the hood
top. Insert the aluminum filter into the bottom filter rack
(hood divider). Push the filter into position past the open filter
clips. Close the filter clips to lock the filter into place. See
Fig. 17.
6. Caulk the ends of the joint between the unit top panel and the
hood top.
7. Replace the filter access panel.
Fig. 15 — Indoor Coil Access Panel Relocation
LEFT
HOOD
SIDE
19 1/16" B
(483mm)
Fig. 16 — Economizer Hood Construction
Downloaded from ManualsNet.com
TOP
PANEL
CAULK
HERE
INDOOR
COIL
ACCESS
PANEL
INDOOR COIL
ACCESS PANEL
SCREW
33 3/8"
(848mm)
HOOD DIVIDER
search engine
BAROMETRIC
RELIEF
Fig. 17 — Economizer Filter Installation
Step 9 — Units with Hinged Panels Only
Relocate latch shipped inside the compressor compartment behind
the hinged compressor door to location shown in Fig. 18 after unit
installation.
If the unit does not have hinged panels, skip this step and continue
at Step 10 below.
Fig. 18 — Compressor Door Latch Location
TOP
Step 10 — Install Flue Hood
PANEL
Flue hood is shipped screwed to the basepan beside the burner
INDOOR
compartment access panel. Remove from shipping location and
COIL
using screws provided, install flue hood and screen in location
ACCESS
PANEL
shown in Fig. 19.
TOP
PANEL
15
DIVIDER
OUTSIDE
AIR
CLEANABLE
ALUMINUM
FILTER
FILTER
FLUE OPENING
Fig. 19 — Flue Hood Details
HOOD
FILTER
CLIP
BLOWER
ACCESS
PANEL
BLOWER
ACCESS
PANEL